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Finding the Fourth Proportional to 286,424.39, 395,272.28 and 157,370.93

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Solution

The fourth proportional to 286,424.39, 395,272.28 and 157,370.93 is: 217,175.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,424.39 : 395,272.28 = 157,370.93 : x
  2. Step 2: Convert to fraction form
    286,424.39/395,272.28 = 157,370.93/x
  3. Step 3: Cross multiply
    286,424.39x = 395,272.28 × 157,370.93
  4. Step 4: Simplify right side
    286,424.39x = 62,204,366,508.15
  5. Step 5: Solve for x
    x = 62,204,366,508.15/286,424.39
  6. Step 6: Final answer
    x = 217,175.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.